Lamp-burner attachment



(No Model.)

J. W. BROER J. &1 G. H. MERRIELL.

LAMP BURNER ATTACHMENT.

No. 466.939. Patented Jan. 12, 1892.

l MA 61mm,

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7 Darren STATES FFICE.

ATENT JOSEPH IV. BROER, HENRY J. MERRIELL, AND GEORGE ll. MERRIELL, OFCHICAGO, ILLINOIS.

LAMP-BURNER ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 466,939, dated January12, 1892.

Application filed May 2, 1891. Serial No. 391,965. (No model.)

To 60% whom it may concern.-

Be it known that we, JOSEPH W. BROER, HENRY J. MERRIELL, and GEORGE H.MER- RIELL, of the city of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inLampl-iurner Attachments; and we do hereby declare that the following isa full, clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form part of this specification, in which Figure l is a side viewof our improved lamp-burner attachment as applied to a lamp I5 andburner. Fig. 2 is a plan view of the burner detached. Fig. 3 is acentral transverse vertical section through the same. Figs at and 5 aresimilar sectional views showing slight modifications of the same.

This invention is an improved lamp attachment, and it is designed toprevent radiation or transmission of heat from the burner to thelamp-body; to permit entrance of air into the lamp-body and escape ofgas therefrom be- 2 5 neat-h the burner, and to enable odd sizes ofburners to be attached to lamps; and it con sists in the'novelconstruction and combination of parts, as will be hereinafter clearlydescribed and claimed. 7

Referring to the drawings by letters, A designates an oil-lamp, and Bthe burner, of ordinary or any desired construction.

C designates my attachment, which is interposed between the lamp andburner and connects the same. This attachment consists of a disk D,which may be flat or dished upwardly or downwardly, and it has a centralopening provided with an internal screwthreaded collard, which receivesthe threaded 4o collar on the bottom of the burner, thus connecting theburner and attachment, and

around this opening is an annular recess or shoulder D in disk D, inwhich is placed a packing e, of asbestos or other fire-proofnonheat-conducting material, which is confined therein by an annularplate, which is in turn confined by an exteriorin verted conical pieceF, the upper larger end of which is connected to the disk, as shown, orin any suitable manner, so as to leave air or gas passages f between itsupper edge and the disk orpla-te. The lower end of piece F is providedwith a screw-threaded flange F, which is adaptedto screw into the collaron the mouth of the lamp, as shown in Fig. 1, thereby securing theattachment and connected burner to the lamp like the burner isordinarily connected thereto.

lVithin piece F is a smaller shorter inverted conical ring, which may beconnected to the disk, collar (1, ring E, or piece F, pro vided that anair-space is left between it and piece F, so that air can pass betweenthe same from the lamp into the lam p-body, or gas pass between the samefrom the lamp into the atmosphere. Any gas escaping therethrough isdeflected under plate D and away from the burner, avoiding danger ofignition thereof. By this arrangement the burner is elevated above thelamp.

Adouble air-space above and below disk D is formed between the burnerandlamp, thus obstructing radiation of heat, and free circulation of airis had between the interior of the lamp and the atmosphere below thedisk and burner, and by reason of this air-circulation the conduction ofheat from the burner to the lamp is greatly obstructed, as the heat istransfused through disk D, and owing to the large surface of the latteris readily absorbed by the air circulating around the same.

Instead of conical ring G and the plate E, a straight ring 9 may beemployed, which will leave a large air-space within the piece F; and theplate E might be omitted, the piece F securing the packing in place.

Having described our invention, what we claim as new, and desire tosecure by letters Patent thereon. is

1. In a lamp-burner attachment of the character described, thecombination of a disk 90 having a central collared and screw-threadedopening and an annular recess around this opening, a1'1on-heat-conducting packing in this recess, an inverted conical piececonnected to the under surface of the disk, leav- 5 ing air-passagesbetween its upper edge and disk, and a ring secured within said pieceforming an annular air space between it and the piece and disk, allsubstantially as herein specified.

2. The combination, with the lamp and burner, of the interposedattachment consisting of a disk having a screw-threaded central openingreceiving the burner-threads, an annular recess around the opening,non-heatconducting packing fitted therein, a plate securing saidpacking, an inverted conical piece secured to the disk and inclosingsaid plate and packing, and a ring within said piece and below theplate, an air-space being.

formed between the piece and ring, and airpassages left at top of piece,all substantially as specified.

In testimony that we claim the foregoing as our own we affix oursignatures in presence 15 of two witnesses.

JOSEPH W. BROER. HENRY J. MERRlELL. GEORGE H. MERRIELL. lVitnesses:

ERNST ScH U MANN, FRANK VVELLs.

